Saw-guard



J. SILT..

SAW GUARD.

Patented July 15, 1884 (No Model.) l

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' UNITED STATES PATENT OFFICE.

J'osEPH SILL, oE PICTURE Rocks, PENNSYLVANIA.

,- n SAW-GUARD;

SPECIFICATION forming part of Letters Patent No. 302,041, dated `l'uly15, 1884.

. a Application filed August 2l, 18,83.

To a/Z whom it may concern,.-

Be it known that I, JOSEPH SILL, a citizen of the United States,residing at Picture Rocks, in the county of Lycoming and State of Penn-5 Sylvania, have invented certain new and useful Improvements inSaw-Guards; and I do hereby declare the-following to be a full, clear,and eXact description of the invention, Such as lwill enable othersskilled in the art to which Io it appertains to make and use the same,reference being had to the accompanying drawings, and to lettersoriigures of reference marked thereon, which forni a part of thisspecification.

4Figure l is a perspective View of a circular sawing machine andsaw-guard adjusted over the circular saw by my improved attachment. Fig.2 is a view of the same parts, showing the Saw-guide adjusted from overthe top of the Fig. 3 is a view in detail and section showing theSaw-guard, its head, and the means for adjusting it vertically. Fig. 4is an en-v larged view of the clamp-box, the eccentric clamping-lever,and the stop applied on the 2 5' upright portion of theswinging arm.

My object is to combine, with a horizontally-swinging arm bearing acircular sawl guard or sheath of segmental form, certain novel devicesfor adjusting said guard or 3o sheath vertically and horizontally, aswill be fully understood from the following description, when taken inconnection with the anneXed drawings.

A designates the sawframe, in which is 3 5 suitably mounted an arbor anda circular Saw, B, the upper portion of which latter extends above thetop G of the Saw-table, in the usual well-known manner, as Shown inFigs. l and 2." D designates an angular horizontally-ad- 4o justablesupporting arm or bracket, which is preferably made of tubular metal,and which has its vertical limb fitted into a clamp-boX,

E, secured rigidly to one side of the sawframe. To this box E, I applyan eccentric,

45 a, having a hand-lever, b, keyed on it for the purpose of gripping orclamping the arm D and holding it rigidly in'either of the posi' tionsdesignated4 in Figs. 1 and 2.

.Directly above the clamp-box E, and fixed 5o to the upright limb of thearm D, is a lug, c, which serves as a stop when this arm D is RenewedJune 12, 1884. (No model.)

swung into the position shown in Fig. 2 by impinging against a plate, d,on the main frame.

To the overhanging end of the arm D, I secure a pendant, vF, which iSvertically slotted, as shown in the drawings, and provided with a hollowsegmental guard, G, adapted to cover the-upper part of the saw B andprotect the Sawyer from flying dust, and also protect him againstaccident, should the s aw belcome fractured and the pieces bethrowni'rom it by centrifugal force. sidesof the guard G will allow thedischarge of the sawdust that may get inside.

This guard is guided in its up-and-down movement in the Vertical slotformed in the said pendant, and it is vertically adjusted by means of aworm on a hand wheel shaft, s, vwhich worm engages with the teethi onavertically'guided rack, J, to whichthe said guard G is secured; or Imay use, if desired, a wormgear for this purpose.

It will be seen from the above description indicatedin Fig. 1 to thatshown in Fig. 2by iirst adjusting itvertical until it iS freed from thesaw, then releasing the arnrD from its clamping-eccentric a and swingingthe arm around about one-half of a revolution on' its vertical axisuntil the stop-lug e strikes the plate d. The arm D maybe xed in thisposition by means of the eccentric a, above described.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is- Y g 1. The combination of the arm adapted toSwing over tlie Saw-table, and having on its outer horizontal end aguardI for a` circular saw, .with a clamp-box iixedto the side of s-aidtable for clamping the vertical end of said arm, whereby said guard canbe moved on its vertical end or fixed in position, sub- Stantially vasdescribed. 2. vIhe combination, with a saw-table, of Swinging arm havinga saw-guard applied to its'overhanging end, and provided with a clampingl.device for the vertical end of the arm, and `a stop-lug, c,substantially in the manner and for the purposes described.

that the guard G is inoved'from the position The orifices g in the i IOO3. The combination,\with ai'rame having a In testimony whereof I affixmy signaturein presence of two witnesses.

JOSEPH SILL.

Vitnesses:

JAMES B. CoRYnLL, THOMAS W. LLOYD.

